OK special price for forum members.
As to the mounting. As the add states all parts are included including the mounting plate for the seat.
The radio plate is removed and replaced by a two rail bracket which bolts straight into existing anchor points. The seat release is moved to the rear, same as the standard full length seat.
To remove the seats once installed, insert the key and the rear seat unlocks. Remove by lifting up and towards the rear. The front seat is still locked to the rails and is released by a very strong spring loaded pin. The front of the seat is anchored in place the same as the single police seat only with a metal surround for the center pin under the air filter. Much better than the Honda OEM. It is quite possible to remove the rear seat and still use the bike which makes it more versatile than Honda's arrangement. The rear seat also has an option (not included) of fitting a Corbin back rest.
All in all takes about 1/2hr to fit with most of that time spent moving the seat release.
If you live in Brisbane, I am happy to do the fitting, free of charge.
Cheers,
A.